[MLB-WIRELESS] Success with GHO

[Peter Buncle]

Yes about that in raw terms, but wireless is different to a normal point
to point
hardwired Data link.

Ie the data rate is not a direct link to actual.

Has someone got a chart handy of actual transfer v's data rates 
on 54g ?


In the world of wireless though , ~500kbytes per sec is considered 11mbs

So 24 - 36 mbs would be needed to get upto 1 - 1.5 mbytes per sec.

Gotta love the wistron CM9 atheros based cards, for the tiny amount of
tx power they 
have at these speeds , they work great !

Peter



-----Original Message-----
From: Peter Berrett [mailto:berrettp at optusnet.com.au] 
Sent: Wednesday, 3 October 2007 8:49 AM
To: Peter Buncle
Cc: melbwireless at wireless.org.au
Subject: Re: [MLB-WIRELESS] Success with GHO



Thanks Peter

For the sake of doubt 1-1.5mbytes per second = 8-12 megabits per second?

cheers Peter

Peter Buncle wrote:
> Hi Peter,
>
> My link is back up to GHO
>
> So you can get to http://10.10.131.1 now which has a list of active 
> nodes on it.
>
> I'm not convinced I've completely fixed my issue but it's running for 
> now.
>
> FYI
>
> I've now changed over my uplink to ILE
>
> It's now on 802.11a (5Ghz) and achieving 1 - 1.5 mbytes per sec.
>
> Cheers
>
> Peter
>
>
>
> -----Original Message-----
> From: melbwireless-bounces at wireless.org.au
> [mailto:melbwireless-bounces at wireless.org.au] On Behalf Of Peter 
> Berrett
> Sent: Sunday, 30 September 2007 3:28 PM
> Cc: melbwireless at wireless.org.au
> Subject: [MLB-WIRELESS] Success with GHO
>
> Hi all
>
> I have modified the 24db Galaxy dish I purchased off Peter B. and 
> created a new dipole to drive the antenna. I compared it to my 
> cantenna (estimated gain 12 db) and there is definently an improvement

> of 8-10 db over the cantenna.
>
> One interesting discovery was the polarisation of the feed.  The 
> reflector is like a series of copper pieces each about 1.5 cm wide 
> with a similarly sized gap between each. These gaps are quite long
(>10 cm).
> Initially I polarised the feed perpendicular to the copper strips  but

> the results were disappointing. When however I polarised the feed 
> parrallel to the strips the results were significantly improved. Thsi 
> seems counter-intuitive to me.  I suspect that if I was to put some 
> aluminium fly screen over the gaps berween the strips I would get even

> more gain. Because the gaps exceed 1/10 of a wavelength it probably is

> not a perfect faraday cage.
>
> I had no problem logging in to GHO although I noted that several nodes

> I had bookmarked on my laptop were unavailable.  This may be due to 
> the cloud that has been hanging around Mt Dandenong affecting some of 
> the links?
>
> I shall try and see if I can get through to FUT today with the Galaxy 
> Antenna from my location (JXG) . It would be tempting to go up to Mr 
> Dandenong and see what kind of range one can get with an antenna like 
> this.
>
> cheers Peter
> _______________________________________________
> Melbwireless mailing list
> Melbwireless at wireless.org.au
> http://wireless.org.au/mailman/listinfo/melbwireless
> --
> Message  protected by MailGuard: e-mail anti-virus, anti-spam and 
> content filtering.
> http://www.mailguard.com.au/mg
>
>
>
>
>
>